2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Mike Karels at Berkeley Software Design, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)sysctl.h 8.1 (Berkeley) 6/2/93
37 * $FreeBSD: src/sys/sys/sysctl.h,v 1.81.2.10 2003/05/01 22:48:09 trhodes Exp $
38 * $DragonFly: src/sys/sys/sysctl.h,v 1.13 2005/02/05 23:04:28 joerg Exp $
41 #ifndef _SYS_SYSCTL_H_
42 #define _SYS_SYSCTL_H_
44 #include <sys/_posix.h>
45 #include <sys/queue.h>
48 * Definitions for sysctl call. The sysctl call uses a hierarchical name
49 * for objects that can be examined or modified. The name is expressed as
50 * a sequence of integers. Like a file path name, the meaning of each
51 * component depends on its place in the hierarchy. The top-level and kern
52 * identifiers are defined here, and other identifiers are defined in the
53 * respective subsystem header files.
56 #define CTL_MAXNAME 12 /* largest number of components supported */
59 * Each subsystem defined by sysctl defines a list of variables
60 * for that subsystem. Each name is either a node with further
61 * levels defined below it, or it is a leaf of some particular
62 * type given below. Each sysctl level defines a set of name/type
63 * pairs to be used by sysctl(1) in manipulating the subsystem.
66 char *ctl_name; /* subsystem name */
67 int ctl_type; /* type of name */
70 #define CTLTYPE 0xf /* Mask for the type */
71 #define CTLTYPE_NODE 1 /* name is a node */
72 #define CTLTYPE_INT 2 /* name describes an integer */
73 #define CTLTYPE_STRING 3 /* name describes a string */
74 #define CTLTYPE_QUAD 4 /* name describes a 64-bit number */
75 #define CTLTYPE_OPAQUE 5 /* name describes a structure */
76 #define CTLTYPE_STRUCT CTLTYPE_OPAQUE /* name describes a structure */
77 #define CTLTYPE_UINT 6 /* name describes an unsigned integer */
78 #define CTLTYPE_LONG 7 /* name describes a long */
79 #define CTLTYPE_ULONG 8 /* name describes an unsigned long */
81 #define CTLFLAG_RD 0x80000000 /* Allow reads of variable */
82 #define CTLFLAG_WR 0x40000000 /* Allow writes to the variable */
83 #define CTLFLAG_RW (CTLFLAG_RD|CTLFLAG_WR)
84 #define CTLFLAG_NOLOCK 0x20000000 /* XXX Don't Lock */
85 #define CTLFLAG_ANYBODY 0x10000000 /* All users can set this var */
86 #define CTLFLAG_SECURE 0x08000000 /* Permit set only if securelevel<=0 */
87 #define CTLFLAG_PRISON 0x04000000 /* Prisoned roots can fiddle */
88 #define CTLFLAG_DYN 0x02000000 /* Dynamic oid - can be freed */
91 * USE THIS instead of a hardwired number from the categories below
92 * to get dynamically assigned sysctl entries using the linker-set
93 * technology. This is the way nearly all new sysctl variables should
95 * e.g. SYSCTL_INT(_parent, OID_AUTO, name, CTLFLAG_RW, &variable, 0, "");
100 #define SYSCTL_HANDLER_ARGS struct sysctl_oid *oidp, void *arg1, int arg2, \
101 struct sysctl_req *req
104 * This describes the access space for a sysctl request. This is needed
105 * so that we can use the interface from the kernel or from user-space.
113 int (*oldfunc)(struct sysctl_req *, const void *, size_t);
117 int (*newfunc)(struct sysctl_req *, void *, size_t);
120 SLIST_HEAD(sysctl_oid_list, sysctl_oid);
123 * This describes one "oid" in the MIB tree. Potentially more nodes can
124 * be hidden behind it, expanded by the handler.
127 struct sysctl_oid_list *oid_parent;
128 SLIST_ENTRY(sysctl_oid) oid_link;
133 const char *oid_name;
134 int (*oid_handler)(SYSCTL_HANDLER_ARGS);
137 const char *oid_descr;
140 #define SYSCTL_IN(r, p, l) (r->newfunc)(r, p, l)
141 #define SYSCTL_OUT(r, p, l) (r->oldfunc)(r, p, l)
143 int sysctl_handle_int(SYSCTL_HANDLER_ARGS);
144 int sysctl_handle_long(SYSCTL_HANDLER_ARGS);
145 int sysctl_handle_quad(SYSCTL_HANDLER_ARGS);
146 int sysctl_handle_intptr(SYSCTL_HANDLER_ARGS);
147 int sysctl_handle_string(SYSCTL_HANDLER_ARGS);
148 int sysctl_handle_opaque(SYSCTL_HANDLER_ARGS);
151 * These functions are used to add/remove an oid from the mib.
153 void sysctl_register_oid(struct sysctl_oid *oidp);
154 void sysctl_unregister_oid(struct sysctl_oid *oidp);
156 /* Declare a static oid to allow child oids to be added to it. */
157 #define SYSCTL_DECL(name) \
158 extern struct sysctl_oid_list sysctl_##name##_children
160 /* Hide these in macros */
161 #define SYSCTL_SET_CHILDREN(oid_ptr, children) do { \
162 (oid_ptr)->oid_arg1 = (children); \
164 #define SYSCTL_CHILDREN(oid_ptr) (struct sysctl_oid_list *) \
166 #define SYSCTL_STATIC_CHILDREN(oid_name) \
167 (&sysctl_##oid_name##_children)
169 /* === Structs and macros related to context handling === */
171 /* All dynamically created sysctls can be tracked in a context list. */
172 struct sysctl_ctx_entry {
173 struct sysctl_oid *entry;
174 TAILQ_ENTRY(sysctl_ctx_entry) link;
177 TAILQ_HEAD(sysctl_ctx_list, sysctl_ctx_entry);
179 /* This constructs a "raw" MIB oid. */
180 #define SYSCTL_OID(parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
181 static struct sysctl_oid sysctl__##parent##_##name = { \
182 &sysctl_##parent##_children, { 0 }, \
183 nbr, kind, a1, a2, #name, handler, fmt, 0, descr }; \
184 DATA_SET(sysctl_set, sysctl__##parent##_##name);
186 #define SYSCTL_ADD_OID(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr) \
187 sysctl_add_oid(ctx, parent, nbr, name, kind, a1, a2, handler, fmt, descr);
189 /* This constructs a node from which other oids can hang. */
190 #define SYSCTL_NODE(parent, nbr, name, access, handler, descr) \
191 struct sysctl_oid_list sysctl_##parent##_##name##_children; \
192 SYSCTL_OID(parent, nbr, name, CTLTYPE_NODE|access, \
193 (void*)&sysctl_##parent##_##name##_children, 0, handler, \
196 #define SYSCTL_ADD_NODE(ctx, parent, nbr, name, access, handler, descr) \
197 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_NODE|access, \
198 0, 0, handler, "N", descr);
200 /* Oid for a string. len can be 0 to indicate '\0' termination. */
201 #define SYSCTL_STRING(parent, nbr, name, access, arg, len, descr) \
202 SYSCTL_OID(parent, nbr, name, CTLTYPE_STRING|access, \
203 arg, len, sysctl_handle_string, "A", descr)
205 #define SYSCTL_ADD_STRING(ctx, parent, nbr, name, access, arg, len, descr) \
206 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_STRING|access, \
207 arg, len, sysctl_handle_string, "A", descr);
209 /* Oid for an int. If ptr is NULL, val is returned. */
210 #define SYSCTL_INT(parent, nbr, name, access, ptr, val, descr) \
211 SYSCTL_OID(parent, nbr, name, CTLTYPE_INT|access, \
212 ptr, val, sysctl_handle_int, "I", descr)
214 /* Oid for an int. If ptr is NULL, val is returned. */
215 #define SYSCTL_QUAD(parent, nbr, name, access, ptr, val, descr) \
216 SYSCTL_OID(parent, nbr, name, CTLTYPE_QUAD|access, \
217 ptr, val, sysctl_handle_quad, "Q", descr)
219 #define SYSCTL_ADD_INT(ctx, parent, nbr, name, access, ptr, val, descr) \
220 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_INT|access, \
221 ptr, val, sysctl_handle_int, "I", descr);
223 /* Oid for an unsigned int. If ptr is NULL, val is returned. */
224 #define SYSCTL_UINT(parent, nbr, name, access, ptr, val, descr) \
225 SYSCTL_OID(parent, nbr, name, CTLTYPE_UINT|access, \
226 ptr, val, sysctl_handle_int, "IU", descr)
228 #define SYSCTL_ADD_UINT(ctx, parent, nbr, name, access, ptr, val, descr) \
229 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_UINT|access, \
230 ptr, val, sysctl_handle_int, "IU", descr);
232 /* Oid for a long. The pointer must be non NULL. */
233 #define SYSCTL_LONG(parent, nbr, name, access, ptr, val, descr) \
234 SYSCTL_OID(parent, nbr, name, CTLTYPE_LONG|access, \
235 ptr, val, sysctl_handle_long, "L", descr)
237 #define SYSCTL_ADD_LONG(ctx, parent, nbr, name, access, ptr, descr) \
238 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_LONG|access, \
239 ptr, 0, sysctl_handle_long, "L", descr);
241 /* Oid for a long. The pointer must be non NULL. */
242 #define SYSCTL_ULONG(parent, nbr, name, access, ptr, val, descr) \
243 SYSCTL_OID(parent, nbr, name, CTLTYPE_ULONG|access, \
244 ptr, val, sysctl_handle_long, "LU", descr)
246 #define SYSCTL_ADD_ULONG(ctx, parent, nbr, name, access, ptr, descr) \
247 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_ULONG|access, \
248 ptr, 0, sysctl_handle_long, "LU", descr);
250 /* Oid for an opaque object. Specified by a pointer and a length. */
251 #define SYSCTL_OPAQUE(parent, nbr, name, access, ptr, len, fmt, descr) \
252 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
253 ptr, len, sysctl_handle_opaque, fmt, descr)
255 #define SYSCTL_ADD_OPAQUE(ctx, parent, nbr, name, access, ptr, len, fmt, descr)\
256 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \
257 ptr, len, sysctl_handle_opaque, fmt, descr);
259 /* Oid for a struct. Specified by a pointer and a type. */
260 #define SYSCTL_STRUCT(parent, nbr, name, access, ptr, type, descr) \
261 SYSCTL_OID(parent, nbr, name, CTLTYPE_OPAQUE|access, \
262 ptr, sizeof(struct type), sysctl_handle_opaque, \
265 #define SYSCTL_ADD_STRUCT(ctx, parent, nbr, name, access, ptr, type, descr) \
266 sysctl_add_oid(ctx, parent, nbr, name, CTLTYPE_OPAQUE|access, \
267 ptr, sizeof(struct type), sysctl_handle_opaque, "S," #type, descr);
269 /* Oid for a procedure. Specified by a pointer and an arg. */
270 #define SYSCTL_PROC(parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
271 SYSCTL_OID(parent, nbr, name, access, \
272 ptr, arg, handler, fmt, descr)
274 #define SYSCTL_ADD_PROC(ctx, parent, nbr, name, access, ptr, arg, handler, fmt, descr) \
275 sysctl_add_oid(ctx, parent, nbr, name, access, \
276 ptr, arg, handler, fmt, descr);
281 * Top-level identifiers
283 #define CTL_UNSPEC 0 /* unused */
284 #define CTL_KERN 1 /* "high kernel": proc, limits */
285 #define CTL_VM 2 /* virtual memory */
286 #define CTL_VFS 3 /* file system, mount type is next */
287 #define CTL_NET 4 /* network, see socket.h */
288 #define CTL_DEBUG 5 /* debugging parameters */
289 #define CTL_HW 6 /* generic cpu/io */
290 #define CTL_MACHDEP 7 /* machine dependent */
291 #define CTL_USER 8 /* user-level */
292 #define CTL_P1003_1B 9 /* POSIX 1003.1B */
293 #define CTL_LWKT 10 /* light weight kernel threads */
294 #define CTL_MAXID 11 /* number of valid top-level ids */
296 #define CTL_NAMES { \
298 { "kern", CTLTYPE_NODE }, \
299 { "vm", CTLTYPE_NODE }, \
300 { "vfs", CTLTYPE_NODE }, \
301 { "net", CTLTYPE_NODE }, \
302 { "debug", CTLTYPE_NODE }, \
303 { "hw", CTLTYPE_NODE }, \
304 { "machdep", CTLTYPE_NODE }, \
305 { "user", CTLTYPE_NODE }, \
306 { "p1003_1b", CTLTYPE_NODE }, \
307 { "lwkt", CTLTYPE_NODE }, \
311 * CTL_KERN identifiers
313 #define KERN_OSTYPE 1 /* string: system version */
314 #define KERN_OSRELEASE 2 /* string: system release */
315 #define KERN_OSREV 3 /* int: system revision */
316 #define KERN_VERSION 4 /* string: compile time info */
317 #define KERN_MAXVNODES 5 /* int: max vnodes */
318 #define KERN_MAXPROC 6 /* int: max processes */
319 #define KERN_MAXFILES 7 /* int: max open files */
320 #define KERN_ARGMAX 8 /* int: max arguments to exec */
321 #define KERN_SECURELVL 9 /* int: system security level */
322 #define KERN_HOSTNAME 10 /* string: hostname */
323 #define KERN_HOSTID 11 /* int: host identifier */
324 #define KERN_CLOCKRATE 12 /* struct: struct clockrate */
325 #define KERN_VNODE 13 /* struct: vnode structures */
326 #define KERN_PROC 14 /* struct: process entries */
327 #define KERN_FILE 15 /* struct: file entries */
328 #define KERN_PROF 16 /* node: kernel profiling info */
329 #define KERN_POSIX1 17 /* int: POSIX.1 version */
330 #define KERN_NGROUPS 18 /* int: # of supplemental group ids */
331 #define KERN_JOB_CONTROL 19 /* int: is job control available */
332 #define KERN_SAVED_IDS 20 /* int: saved set-user/group-ID */
333 #define KERN_BOOTTIME 21 /* struct: time kernel was booted */
334 #define KERN_NISDOMAINNAME 22 /* string: YP domain name */
335 #define KERN_UPDATEINTERVAL 23 /* int: update process sleep time */
336 #define KERN_OSRELDATE 24 /* int: OS release date */
337 #define KERN_NTP_PLL 25 /* node: NTP PLL control */
338 #define KERN_BOOTFILE 26 /* string: name of booted kernel */
339 #define KERN_MAXFILESPERPROC 27 /* int: max open files per proc */
340 #define KERN_MAXPROCPERUID 28 /* int: max processes per uid */
341 #define KERN_DUMPDEV 29 /* dev_t: device to dump on */
342 #define KERN_IPC 30 /* node: anything related to IPC */
343 #define KERN_DUMMY 31 /* unused */
344 #define KERN_PS_STRINGS 32 /* int: address of PS_STRINGS */
345 #define KERN_USRSTACK 33 /* int: address of USRSTACK */
346 #define KERN_LOGSIGEXIT 34 /* int: do we log sigexit procs? */
347 #define KERN_IOV_MAX 35 /* int: value of UIO_MAXIOV */
348 #define KERN_MAXPOSIXLOCKSPERUID 36 /* int: max POSIX locks per uid */
349 #define KERN_MAXID 37 /* number of valid kern ids */
351 #define CTL_KERN_NAMES { \
353 { "ostype", CTLTYPE_STRING }, \
354 { "osrelease", CTLTYPE_STRING }, \
355 { "osrevision", CTLTYPE_INT }, \
356 { "version", CTLTYPE_STRING }, \
357 { "maxvnodes", CTLTYPE_INT }, \
358 { "maxproc", CTLTYPE_INT }, \
359 { "maxfiles", CTLTYPE_INT }, \
360 { "argmax", CTLTYPE_INT }, \
361 { "securelevel", CTLTYPE_INT }, \
362 { "hostname", CTLTYPE_STRING }, \
363 { "hostid", CTLTYPE_UINT }, \
364 { "clockrate", CTLTYPE_STRUCT }, \
365 { "vnode", CTLTYPE_STRUCT }, \
366 { "proc", CTLTYPE_STRUCT }, \
367 { "file", CTLTYPE_STRUCT }, \
368 { "profiling", CTLTYPE_NODE }, \
369 { "posix1version", CTLTYPE_INT }, \
370 { "ngroups", CTLTYPE_INT }, \
371 { "job_control", CTLTYPE_INT }, \
372 { "saved_ids", CTLTYPE_INT }, \
373 { "boottime", CTLTYPE_STRUCT }, \
374 { "nisdomainname", CTLTYPE_STRING }, \
375 { "update", CTLTYPE_INT }, \
376 { "osreldate", CTLTYPE_INT }, \
377 { "ntp_pll", CTLTYPE_NODE }, \
378 { "bootfile", CTLTYPE_STRING }, \
379 { "maxfilesperproc", CTLTYPE_INT }, \
380 { "maxprocperuid", CTLTYPE_INT }, \
381 { "maxposixlocksperuid", CTLTYPE_INT }, \
382 { "dumpdev", CTLTYPE_STRUCT }, /* we lie; don't print as int */ \
383 { "ipc", CTLTYPE_NODE }, \
384 { "dummy", CTLTYPE_INT }, \
385 { "ps_strings", CTLTYPE_INT }, \
386 { "usrstack", CTLTYPE_INT }, \
387 { "logsigexit", CTLTYPE_INT }, \
388 { "iov_max", CTLTYPE_INT }, \
392 * CTL_VFS identifiers
394 #define CTL_VFS_NAMES { \
395 { "vfsconf", CTLTYPE_STRUCT }, \
401 #define KERN_PROC_ALL 0 /* everything */
402 #define KERN_PROC_PID 1 /* by process id */
403 #define KERN_PROC_PGRP 2 /* by process group id */
404 #define KERN_PROC_SESSION 3 /* by session of pid */
405 #define KERN_PROC_TTY 4 /* by controlling tty */
406 #define KERN_PROC_UID 5 /* by effective uid */
407 #define KERN_PROC_RUID 6 /* by real uid */
408 #define KERN_PROC_ARGS 7 /* get/set arguments/proctitle */
411 * KERN_IPC identifiers
413 #define KIPC_MAXSOCKBUF 1 /* int: max size of a socket buffer */
414 #define KIPC_SOCKBUF_WASTE 2 /* int: wastage factor in sockbuf */
415 #define KIPC_SOMAXCONN 3 /* int: max length of connection q */
416 #define KIPC_MAX_LINKHDR 4 /* int: max length of link header */
417 #define KIPC_MAX_PROTOHDR 5 /* int: max length of network header */
418 #define KIPC_MAX_HDR 6 /* int: max total length of headers */
419 #define KIPC_MAX_DATALEN 7 /* int: max length of data? */
420 #define KIPC_MBSTAT 8 /* struct: mbuf usage statistics */
421 #define KIPC_NMBCLUSTERS 9 /* int: maximum mbuf clusters */
426 #define HW_MACHINE 1 /* string: machine class */
427 #define HW_MODEL 2 /* string: specific machine model */
428 #define HW_NCPU 3 /* int: number of cpus */
429 #define HW_BYTEORDER 4 /* int: machine byte order */
430 #define HW_PHYSMEM 5 /* int: total memory */
431 #define HW_USERMEM 6 /* int: non-kernel memory */
432 #define HW_PAGESIZE 7 /* int: software page size */
433 #define HW_DISKNAMES 8 /* strings: disk drive names */
434 #define HW_DISKSTATS 9 /* struct: diskstats[] */
435 #define HW_FLOATINGPT 10 /* int: has HW floating point? */
436 #define HW_MACHINE_ARCH 11 /* string: machine architecture */
437 #define HW_MAXID 12 /* number of valid hw ids */
439 #define CTL_HW_NAMES { \
441 { "machine", CTLTYPE_STRING }, \
442 { "model", CTLTYPE_STRING }, \
443 { "ncpu", CTLTYPE_INT }, \
444 { "byteorder", CTLTYPE_INT }, \
445 { "physmem", CTLTYPE_UINT }, \
446 { "usermem", CTLTYPE_UINT }, \
447 { "pagesize", CTLTYPE_INT }, \
448 { "disknames", CTLTYPE_STRUCT }, \
449 { "diskstats", CTLTYPE_STRUCT }, \
450 { "floatingpoint", CTLTYPE_INT }, \
454 * CTL_USER definitions
456 #define USER_CS_PATH 1 /* string: _CS_PATH */
457 #define USER_BC_BASE_MAX 2 /* int: BC_BASE_MAX */
458 #define USER_BC_DIM_MAX 3 /* int: BC_DIM_MAX */
459 #define USER_BC_SCALE_MAX 4 /* int: BC_SCALE_MAX */
460 #define USER_BC_STRING_MAX 5 /* int: BC_STRING_MAX */
461 #define USER_COLL_WEIGHTS_MAX 6 /* int: COLL_WEIGHTS_MAX */
462 #define USER_EXPR_NEST_MAX 7 /* int: EXPR_NEST_MAX */
463 #define USER_LINE_MAX 8 /* int: LINE_MAX */
464 #define USER_RE_DUP_MAX 9 /* int: RE_DUP_MAX */
465 #define USER_POSIX2_VERSION 10 /* int: POSIX2_VERSION */
466 #define USER_POSIX2_C_BIND 11 /* int: POSIX2_C_BIND */
467 #define USER_POSIX2_C_DEV 12 /* int: POSIX2_C_DEV */
468 #define USER_POSIX2_CHAR_TERM 13 /* int: POSIX2_CHAR_TERM */
469 #define USER_POSIX2_FORT_DEV 14 /* int: POSIX2_FORT_DEV */
470 #define USER_POSIX2_FORT_RUN 15 /* int: POSIX2_FORT_RUN */
471 #define USER_POSIX2_LOCALEDEF 16 /* int: POSIX2_LOCALEDEF */
472 #define USER_POSIX2_SW_DEV 17 /* int: POSIX2_SW_DEV */
473 #define USER_POSIX2_UPE 18 /* int: POSIX2_UPE */
474 #define USER_STREAM_MAX 19 /* int: POSIX2_STREAM_MAX */
475 #define USER_TZNAME_MAX 20 /* int: POSIX2_TZNAME_MAX */
476 #define USER_MAXID 21 /* number of valid user ids */
478 #define CTL_USER_NAMES { \
480 { "cs_path", CTLTYPE_STRING }, \
481 { "bc_base_max", CTLTYPE_INT }, \
482 { "bc_dim_max", CTLTYPE_INT }, \
483 { "bc_scale_max", CTLTYPE_INT }, \
484 { "bc_string_max", CTLTYPE_INT }, \
485 { "coll_weights_max", CTLTYPE_INT }, \
486 { "expr_nest_max", CTLTYPE_INT }, \
487 { "line_max", CTLTYPE_INT }, \
488 { "re_dup_max", CTLTYPE_INT }, \
489 { "posix2_version", CTLTYPE_INT }, \
490 { "posix2_c_bind", CTLTYPE_INT }, \
491 { "posix2_c_dev", CTLTYPE_INT }, \
492 { "posix2_char_term", CTLTYPE_INT }, \
493 { "posix2_fort_dev", CTLTYPE_INT }, \
494 { "posix2_fort_run", CTLTYPE_INT }, \
495 { "posix2_localedef", CTLTYPE_INT }, \
496 { "posix2_sw_dev", CTLTYPE_INT }, \
497 { "posix2_upe", CTLTYPE_INT }, \
498 { "stream_max", CTLTYPE_INT }, \
499 { "tzname_max", CTLTYPE_INT }, \
502 #define CTL_P1003_1B_ASYNCHRONOUS_IO 1 /* boolean */
503 #define CTL_P1003_1B_MAPPED_FILES 2 /* boolean */
504 #define CTL_P1003_1B_MEMLOCK 3 /* boolean */
505 #define CTL_P1003_1B_MEMLOCK_RANGE 4 /* boolean */
506 #define CTL_P1003_1B_MEMORY_PROTECTION 5 /* boolean */
507 #define CTL_P1003_1B_MESSAGE_PASSING 6 /* boolean */
508 #define CTL_P1003_1B_PRIORITIZED_IO 7 /* boolean */
509 #define CTL_P1003_1B_PRIORITY_SCHEDULING 8 /* boolean */
510 #define CTL_P1003_1B_REALTIME_SIGNALS 9 /* boolean */
511 #define CTL_P1003_1B_SEMAPHORES 10 /* boolean */
512 #define CTL_P1003_1B_FSYNC 11 /* boolean */
513 #define CTL_P1003_1B_SHARED_MEMORY_OBJECTS 12 /* boolean */
514 #define CTL_P1003_1B_SYNCHRONIZED_IO 13 /* boolean */
515 #define CTL_P1003_1B_TIMERS 14 /* boolean */
516 #define CTL_P1003_1B_AIO_LISTIO_MAX 15 /* int */
517 #define CTL_P1003_1B_AIO_MAX 16 /* int */
518 #define CTL_P1003_1B_AIO_PRIO_DELTA_MAX 17 /* int */
519 #define CTL_P1003_1B_DELAYTIMER_MAX 18 /* int */
520 #define CTL_P1003_1B_MQ_OPEN_MAX 19 /* int */
521 #define CTL_P1003_1B_PAGESIZE 20 /* int */
522 #define CTL_P1003_1B_RTSIG_MAX 21 /* int */
523 #define CTL_P1003_1B_SEM_NSEMS_MAX 22 /* int */
524 #define CTL_P1003_1B_SEM_VALUE_MAX 23 /* int */
525 #define CTL_P1003_1B_SIGQUEUE_MAX 24 /* int */
526 #define CTL_P1003_1B_TIMER_MAX 25 /* int */
528 #define CTL_P1003_1B_MAXID 26
530 #define CTL_P1003_1B_NAMES { \
532 { "asynchronous_io", CTLTYPE_INT }, \
533 { "mapped_files", CTLTYPE_INT }, \
534 { "memlock", CTLTYPE_INT }, \
535 { "memlock_range", CTLTYPE_INT }, \
536 { "memory_protection", CTLTYPE_INT }, \
537 { "message_passing", CTLTYPE_INT }, \
538 { "prioritized_io", CTLTYPE_INT }, \
539 { "priority_scheduling", CTLTYPE_INT }, \
540 { "realtime_signals", CTLTYPE_INT }, \
541 { "semaphores", CTLTYPE_INT }, \
542 { "fsync", CTLTYPE_INT }, \
543 { "shared_memory_objects", CTLTYPE_INT }, \
544 { "synchronized_io", CTLTYPE_INT }, \
545 { "timers", CTLTYPE_INT }, \
546 { "aio_listio_max", CTLTYPE_INT }, \
547 { "aio_max", CTLTYPE_INT }, \
548 { "aio_prio_delta_max", CTLTYPE_INT }, \
549 { "delaytimer_max", CTLTYPE_INT }, \
550 { "mq_open_max", CTLTYPE_INT }, \
551 { "pagesize", CTLTYPE_INT }, \
552 { "rtsig_max", CTLTYPE_INT }, \
553 { "nsems_max", CTLTYPE_INT }, \
554 { "sem_value_max", CTLTYPE_INT }, \
555 { "sigqueue_max", CTLTYPE_INT }, \
556 { "timer_max", CTLTYPE_INT }, \
562 * Declare some common oids.
564 extern struct sysctl_oid_list sysctl__children;
566 SYSCTL_DECL(_sysctl);
572 SYSCTL_DECL(_machdep);
574 SYSCTL_DECL(_compat);
578 * Common second-level oids.
580 SYSCTL_DECL(_kern_ipc);
582 extern char machine[];
583 extern char osrelease[];
584 extern char ostype[];
585 extern char kern_ident[];
587 /* Dynamic oid handling */
588 struct sysctl_oid *sysctl_add_oid(struct sysctl_ctx_list *clist,
589 struct sysctl_oid_list *parent, int nbr, const char *name,
590 int kind, void *arg1, int arg2,
591 int (*handler) (SYSCTL_HANDLER_ARGS),
592 const char *fmt, const char *descr);
593 int sysctl_remove_oid(struct sysctl_oid *oidp, int del, int recurse);
594 int sysctl_ctx_init(struct sysctl_ctx_list *clist);
595 int sysctl_ctx_free(struct sysctl_ctx_list *clist);
596 struct sysctl_ctx_entry *sysctl_ctx_entry_add(struct sysctl_ctx_list *clist,
597 struct sysctl_oid *oidp);
598 struct sysctl_ctx_entry *sysctl_ctx_entry_find(struct sysctl_ctx_list *clist,
599 struct sysctl_oid *oidp);
600 int sysctl_ctx_entry_del(struct sysctl_ctx_list *clist,
601 struct sysctl_oid *oidp);
603 int kernel_sysctl(int *name, u_int namelen, void *old,
604 size_t *oldlenp, void *new, size_t newlen,
606 int kernel_sysctlbyname(char *name,
607 void *old, size_t *oldlenp, void *new, size_t newlen,
609 int userland_sysctl(int *name, u_int namelen, void *old,
610 size_t *oldlenp, int inkernel, void *new, size_t newlen,
612 int sysctl_find_oid(int *name, u_int namelen, struct sysctl_oid **noid,
613 int *nindx, struct sysctl_req *req);
616 #include <sys/cdefs.h>
619 int sysctl (int *, u_int, void *, size_t *, void *, size_t);
620 int sysctlbyname (const char *, void *, size_t *, void *, size_t);
621 int sysctlnametomib (const char *, int *, size_t *);
625 #endif /* !_SYS_SYSCTL_H_ */